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Windows 7: External monitor maybe going bad?

My external monitor works but it just recently started doing something weird. It might be the VGA Cable but I'm not sure. It's visible enough that if you compared my laptop screen towards my external screen you would see this like tiny tiny tiny tiny (emphasizing tiny) like white flickers. Some what moving up and down the screen. It's like almost if your VGA cable was just slightly not all the way in. I've wiggled the cabled replugged both ends. Turned my laptop off, the screen off. Reset the screen settings. Everything and I still see it. Is my VGA Cable going bad or my monitor?

External monitor maybe going bad?

Desktop Icons Rearranged To Laptop Monitor From External MonitorWindows 10 laptop. I connect it to an external monitor and use hdmi cable. My external monitor is my main monitor. I use the laptop monitor as the secondary monitor. I extend the display.
My desktop icons are always on my external monitor desktop. I had moved the hdmi cable connected to my...

General Discussion

Laptop Monitor Screen Connected To External Monitor Resolution IssueI have a dell laptop that has 1920x1080 resolution. However, i connect it to an external monitor that has 1920x1200 resolution. Basically almost everything i do is on my external monitor which acts as my main primary screen. Thus i do sometimes open some windows or drag a window or so to the other...

Graphic Cards

Asus monitor not working as external monitor for notebookHi,
i have a notebook lenovo y570 that has a intel 3000 and a nvidia gt 555m card. My external asus vg248 monitor used to work through hdmi, but now it doesnt. I test with another laptop and the monitor works through hdmi... i must have changed some setting in my lenovo. The monitor says no hdmi...

Graphic Cards

Dell Laptop external monitor = OK, attached monitor = BSODMy old dell laptop L502x is a bit quirky and caused me to buy a desktop, however, i think it is still saveable. when i have it display to an external monitor via hdmi, it works 100% with no problems. however, when i use the monitor that is physically attached to the laptop, i will get a " A clock...